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Mathematics, 17.10.2021 23:20 aroland1990x

A football is kicked from ground level with an initial velocity of 72 feet per second. The height above the ground is modeled by the function h(t)=-16t^2+72t, where t is the time in seconds since the football was kicked. How many seconds will it take the football to reach a height of 80 feet as it travels upward?

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